#define _CRT_SECURE_NO_WARNINGS 1
#include"string.h"

int main()
{
	//why::test1();
	//why::test2();
	//why::test3();
	//why::test4();
	//why::test5();
	//why::test7();
	//why::test8();
	why::test9();
	return 0;
}